Page 120 - Distillation theory

P1: FCH/FFX P2: FCH/FFX QC: FCH/FFX T1: FCH
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94 Trajectories of Thermodynamically Reversible Distillation

1234 1324 2
a) 1 α 2 b)
23 α
1234 1324 3124 23
1 α 3
23 13 1324
1234 1324
1 4
α 23 α 13
1324 3124
2 α 3 α 13 α
13 1 1234 23 4
1324
2 4 α α
23 13
3124 1324 13 3124
3 α 4
13
3
Figure 4.13. (a) Component-order Reg and tear-off Reg t and Reg t
ord rev,r rev,s
(doublelinefortheoverheadproductandthicklineforthebottomproduct)seg-
ments on edges of the acetone(1)-benzene(2)-chloroform(3)-toluene(4) con-
1,2,3,4 1,3,2,4
centration tetrahedron. (b) Component-order regions Reg ord , Reg ord , and
3,1,2,4
Reg inside the concentration tetrahedron. The boundary of distillation re-
ord
gions under infinite reflux hatched, α-surfaces are shaded.
2 2

a) α b) α
23
23 1324
1324
α
13
1234 1234
3124
1 α 3 1 α 4
23 13 23

3 3

c) 13 3124 d) 3124
α 13
α
23 α 13
1324 α 13
1234 1324

1 4 2 4
α 23
Figure 4.14. Component-order Reg ord and tear-off Reg t rev,r and
Reg t regions on three-component faces of the concentration tetra-
rev,s
hedron(shadedfortheoverheadproductanddarkershadedforthebot-
tom product) for the acetone(1)-benzene(2)-chloroform(3)-toluene(4)
4 1
mixture: (a) Reg t rev,r , (d) Reg t rev,s , 1234, 1324, and 3124 − component-
1,2,3 2,3,4
1,2,3,4 1,3,2,4 3,1,2,4
order regions Reg , Reg , and Reg .
ord ord ord